Improvement in cotton gins



BRACKETT & DEARBORN.

Cotton Gin No. 63.136. Patented March 26, 1867.

N.PETER8, PMOTO-LITHOGRAPNER, WASH NGTON. D. C)

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JOHN B. BRACKETT AND YMAN'DEAR OR OF'B SToN, MASSACHUSETTS.

' Letters Patent No; 63,136, dated Mai-67L '26, 1867.

IMPROVEMENT? 1N COTTON ems.

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TO ALL WHOM IT MAY VOONOERN:

Be it known that we, JOHN BeBnAcKErr and lrVYMAN DEA-RBORN, f- Boston, in the county of Suflollc, and State of Massachusetts have invented a-newanduseful Improved Cotton Gin; and we do hereby declare that the following is a full, clear,- and exact description of the construction and operation of the same, reference being'had to the accompanying drawings, forming apart of this specification Figure 1 is aside elevation, which is a side elevation having the interior construction dottedthrough.

A isthc side or frame of the machine, pierced with holes andslots as drawn; B is the feeding plat form C C are ro lls,-enveloped by thc endless belt Dflvhich is drawn and representedas of rubber, but may hoot rubber andcloth, or even of an even quality of heavy Web. Between the two rolls, there presses upon the outside of the endlessbelt E, a fixed pressure-bar convex toward the belt, flat on the side away from the. belt, and thin at the top and in front of the pressure-bar vibrates the clearer, F, shaped and arranged as drawn, and hung to levers, G, placedabove the rolls 0 C. These levers are formed with a slotted end, g, in n'hich revolves the crank of cranked rod H, giving areciprocatiug motion to the clearer; Rod H is operated by an endless belt from roll 0. Any degree of tensionmay be given to belt D by means of levers-j, the location and peration of which-can be controlled by shifting the fulcraof levers k among the notches or pegs e a. The roller Q has ajournal passing into a movable bearing, J, which plays'vertically in the slot of the frame, and to which the leversjare attached by any suitable means. A parallel motion is secured to clearer F by means of rods, 1n, connecting it with the feeding platform B. Additional tension maybe given to the belt D by means of a tightening roll forced against the belt, as shownat p, or by other proper means. Cotton-is fed'to the machine while in motion, passes between the endless belt-D and pressure-bar and the seed is dofl'ed oil by clearer F, and falls outside of apron or guard N, while the 'fibrepasses inside of the same. The speed'andac-tion-oi' the-machine are regulated with great ease by means ofthe tightening apparatus and endless belt D, and'the belt, in combination with the convex pressure-bar,-presents a far more perfect device for cleaning the cotton, from seed than the concave pressure-bar and elastic roll now in use in other gins. The clogging of the e'ounections of the clearer, also, is avoided by hanging itabove the rolls, and its certainty of action is insured by avoiding,long connecting-rods and by bringing the power close to the work Of course the no'tches e c may be replaced by holes and pins andvserve for fulcra equally well.

We claim as our invention,-and desire to secur'e' by Letters Patent* 4 1; The r'olls G G, constructed as described, user ranged with the belt D, in combination with the sliding bearing J, and levers j, with their variable fulcra, substantially as and for the purpose described.

2. The rolls C C, constructed as described, iri combination with the convex pressure-bar 'E, and endless belt D, arranged and operating as'and for the purpose described. I

3. The arrangement of pressure-roll in combination with beltD, when arranged as described, in connction with rollers O C, and pressure-bar E,'as andfor, the purpose described.

4. The arrangement of slotted levers G, in combination with clearer F, and crank-shaft H, and'the further: combination of said clearer, levers, and crank-shaft with rods m, as and for the purpose described.

' JOHN B. BRAGKETT,

WYMAN DEARBORN. .Witnesses r 'Tiios. WM. CLARK,

CnAnLns J. B'ATEM'ANQZ 

